baber/WOPTO huggingface dataset:
Patent GB-1461872-A (GB)
Title: Lithographic printing plates
IPC: G03G17/10
Filed: 1974-01-23
Abstract: 1461872 Lithographic printing plates XEROX CORP 23 Jan 1974 [29 Jan 1973] 03140/74 Heading B6C [Also in Division G2] A lithographic printing plate blank has a surface layer of a powder, or of a frangible material which breaks up to form a powder, overlying a material 12 which can be softened, e.g. by heat or by a solvent to allow the powder particles 14 to pass through it under an imparted force. One of the softenable material and powder is hydrophilic and the other hydrophobic, so imagewise removal of portions of the powder to below the surface of the softenable material leaves an image at the surface of the plate. Alternatively, the upper part of the plate blank may be removed, to reveal an image of particles 14 on substrate 11. The powder particles may be moved by imagewise magnetic forces, or may be forced magnetically or centrifugally through a material 12 which has been softened imagewise, e.g. by vapour applied through a stencil. Preferably, the particles 14 are photoconductive, and respond to an electrical field according to their exposure to imagewise light.
Patent GB-410920-A (GB)
Title: Improvements in or relating to leg joints for divans, tables, and other articles of furniture having detachable legs
IPC: F16B12/46
Filed: 1933-02-02
Abstract: 410,920. Bolts. VAUGHAN, E., Field House, Clent, near Stourbridge, Worcestershire. Feb. 2, 1933, No. 3180. [Class 89 (i).] In a leg joint for furniture, the leg a is secured by a bolt d passing through the leg and frame, and has a head d<1> of triangular prismatic form which is adapted to be recessed into the jointed corner of the frame flush with the exterior faces.
Patent GB-1436811-A (GB)
Title: Silica-based defoamer compositions
IPC: C09D7/60
Filed: 1974-01-23
Abstract: 1436811 Silica-containing defoamer compositions DIAMOND SHAMROCK CORP 23 Jan 1974 [24 Jan 1973] 3222/74 Headings C1A and C1C [Also in Division C4] Novel defoamer compositions for aqueous systems, e.g. for boiler water and in sugar beet refining, paper manufacture, textile manufacture, adhesives, cement and coatings such as paints, comprise a suspension of 3-20% by weight of hydrophobic silica in a water-immiscible carrier liquid and, as stabilizer, 0À1-2% by weight of a quick-chilled amide; up to 3% by weight of a surfactant and/or up to 25% by weight of an oil-soluble organic polymer may also be present. Suitable carrier liquids are natural and mineral oils and hydrocarbons; suitable amides are those derived from a C 6-18  fatty acid and a polyamine having at least one C 2-6  alkylene group; preferred carrier liquids, amide components, surfactants and polymers are listed. The "quick-chilling" process for the amides is as described in USA Specifications 3,652,453 and 3,677,963, and may be carried out by maintaining the amide in molten state for at least 15 min, and rapidly cooling by (a) adding a carrier liquid or water, (b) rapidly dropping the melt into carrier liquid, or (c) applying the melt to a cold surface and adding the resulting coagulate to a carrier liquid; carrier liquid may be mixed with the amide before the heating, the amide then being held in the dissolved state for at least 15 min. Silica may be rendered hydrophobic for use in the compositions by spraying with or dispersing in a silicone oil and heating, or by treatment with the vapours of one or more organo-silicon halides.
Patent GB-590886-A (GB)
Title: Improvements in frequency responsive means particularly for use with frequency modulated radio transmitters
IPC: H03C3/09
Filed: 1944-02-22
Abstract: 5 9 0, 886. Frequency modulation. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 22, 1944, No. 3258. Convention date, Feb. 27, 1943. [Class 40 (v)] [Also in Groups XXXV and XXXVI] In a frequency-monitoring arrangement for frequency-.modulation signals, the signals and a standard-frequency signal are compared by alternate and periodic application to a frequency-measuring circuit. Switching valves 13, 14 (Fig. 1) with screens impulsed from the multivibrator 15 over the transformer winding 40 alternately connect the oscillators 10, 11 respectively to the limiter 65 and discriminator 12. If the frequencies differ, the discriminator output will include a pulsating component which is applied over the transformer 77 to the rectifier 18 together with impulses from the transformer winding 80 which determine the sense of the difference. The rectified output, smoothed by the network 93, is applied to the indicating instrument 90 and to a reactance valve 19 controlling the frequency of the oscillator 10. In a monitoring arrangement at a receiving station (Fig. 7) the output from the discriminator 131 is applied to the X-deflection plates of the cathode-ray tube 130, a sawtooth potential being applied to the Y-plates from the source 132. In order to distinguish the trace corresponding to the standard frequency the switch 134 is ganged to the switch 135 and causes the grid of the tube 130 to be modulated from the source 133 during the appropriate period. In another arrangement (Fig. 8) comprising a superheterodyne receiver in which the beat frequency is derived from -the comparison oscillator 143 over the frequency multiplier 144, switching is performed by a multivibrator 140 which produces`'alternate long and short impulses. The output from the discriminator 146, comprising a steady potential due to the long impulses with superimposed short pulses whose sign is determined by the sense of the frequency deviation, is applied to a detector (Fig. 9) comprising inverselyconnected rectifiers 190, 191 with the indicating instrument 147 in shunt with the common load resistance 196. The ganged switches 150-4 provide in position (1) for checking the pulse width (2) for the application of a standard frequency deviation, the relay 152 causing a shift of oscillator frequency by introduction of the condenser 157 when impulsed from the multivibrator 140, and (3) for normal operation. In a further arrangement (Figs. 5, 6 not shown) a differential indicating instrument is employed, the discriminator output being switched from the one coil to the other in synchronism with the switching of the oscillators. In a modification (Fig. 11) the switch 169 rendering the keying valves 160, 161 alternately conductive by means of impulses derived from the battery 168 also applies blocking bias to the diodes 174, 175 so that the discriminator output is deflected through the appropriate coils of the differential meter 180.
Patent GB-434174-A (GB)
Title: Improvements relating to safety razors
IPC: B26B21/10
Filed: 1935-02-01
Abstract: 434,174. Safety razors. MOSES, J. M., 109, East Redwood Street, Baltimore, U.S.A. Feb. 1, 1935, No. 3332. [Class 30] The blade is held by friction between spring jaws 3, 4 integral with a handle 2, one or both of which jaws is or are slotted as at 5 for the reception of a rib on the blade 6 or on an adapter 10, Fig. 4. The latter comprises a plate 10 formed with a rib 9 adapted to pass through a slot in the blade into the slot 5. The device may be modified for use with the hoe type of razor, Fig. 5, by forming central holes in the blade and adapter for the passage of the screwed end 20 of the handle 21. A slotted plate may space the blade from the jaw 3 in addition to the plate 10 on the underside of the blade. In Fig. 5, the backing plate 19 is shown slotted. The adapter is preferably made of non-metallic material such as celluloid to minimize corrosion.
Patent GB-399697-A (GB)
Title: Improvements in or relating to the formation of roll edges on mattresses
IPC: B68G7/12
Filed: 1933-02-03
Abstract: 399,697. Mattresses. CROWN BEDDING CO., Ltd. and WALLIS, L. S., 46, Macdonald Street, Birmingham. Feb. 3, 1933, No. 3333. [Class 52 (iv).] The top and bottom covering sheets c, d of a mattress casing have strips secured thereto which are wrapped over the vertical face of the spring interior casing and stitched thereto, a padded peripheral boxing being then applied and secured by stitching the free edges of the inner fabric wall f to the strips j, the outer fabric wall e being stitched to the covering sheets c, d, thus providing a pocket for the roll edge stuffing n.
Patent GB-1145445-A (GB)
Title: Fluorinated perfluorovinylethers, their preparation and copolymers thereof
Inventor: ANDERSON DANIEL GUSTAV
IPC: C08F214/22
Filed: 1967-01-23
Abstract: 1,145,445. Fluorinated ether-acids and derivatives thereof. E. I. DU PONT DE NEMOURS & CO. 23 Jan., 1967 [16 Feb., 1966], No. 3369/67. Heading. C2C. [Also in Division C3] The invention comprises compounds of the general formula wherein n is 2-12 and X is -COF, -COOH, -COOR 1 , -COOM, -CONR 2 R 3  or -CN, R 1  being C 1-10  alkyl, R 2  and R 3  each being H or C 1-10  alkyl, and M being Na, K or Cs. The compounds in which X is -COOM are prepared, together with a minor amount of the compounds in which X is -COF, by pyrolysing a compound of the formula at 175-200 C. under substantially anhydrous conditions and in the absence of an inert polar solvent. These compounds may be converted to compounds in which X is other than -COOM in conventional manner. The starting materials are prepared by reacting a compound of the formula FOC-(CF 2 ) x -COF, where x is 1-11 with hexafluoropropylene epoxide in the presence of an alkali metal fluoride and a polar solvent to give a compound of the formula which is esterified with an alcohol. The resulting diester is then converted to the desired salt by saponification with anhydrous methanolic KOH, NaOH or CsOH, or by hydrolysis to the diacid followed by neutralization with aqueous KOH, NaOH or CsOH.
Patent GB-313102-A (GB)
Title: Improvements in or relating to moulding apparatus
IPC: B29D30/06
Filed: 1928-02-03
Abstract: 313,102. Dunlop Rubber Go., Ltd., Willshaw, H., Smith, H., and Broadbent, F. G. Feb. 3, 1928. Moulding wheel tyres.-In manually-controlled apparatus for moulding and vulcanizing pneumatic tyres, tubes &c. under internal pressure, wherein the apparatus cannot be opened until the internal pressure is released, the opening-preventing means is controlled directly by the internal pressure. As shown, applied to apparatus comprising a fixed centre chest 1 associated with hinged side chests 3, 4 operable by eccentrics 9, 10 as described in Specification 290,405, the opening handle 7 is locked by a piston 16 mounted in a detent device 12 which piston is forced downwardly into the path of the handle 7 against the action of a spring. An air valve 11. furnished with a key 13 loaded rotationally by a spring 14 and longitudinally by a spring 15, is connected through a pipe 24 to a pipe 21 connected to the air bag and to the detent 12. A restriction in the pipe 24 ensures that the detent is last to be released. In operation, as the handle 7 is closed it turns the key 13 to admit pressure to the air bag and to operate the detent 12 causing this piston 16 to be depressed to lock the handle against opening. After moulding &c., the key 13 is pulled longitudinally against the spring 15 and turned to release the pressure. When the pressure within the bag has been relieved, the piston 16 is withdrawn, permitting the handle 7 to be operated.
Patent GB-879145-A (GB)
Title: Improvements in or relating to methods of dissolving polymers
IPC: A23L5/20
Filed: 1958-02-03
Abstract: 879,145. Solutions containing graft copolymers. POLYPLASTIC. Feb. 3, 1958 [Feb. 2, 1957], No. 3457/58. Class 2(6). A polymer is dissolved in a solvent in which it is not normally soluble by preparing a solution in the solvent of a graft copolymer of the monomer of the polymer to be dissolved and another monomer the homopolymer of which is soluble in the solvent, and then introducing the insoluble polymer into the solvent. The graft copolymer may be prepared in situ in the solvent by polymerization of either the monomer producing the insoluble polymer or the monomer producing the soluble polymer in the presence of the corresponding preformed polymer. Alternatively, the graft copolymer may be prepared in bulk, solution, emulsion or suspension. The graft polymerization is preferably carried out by the ozonization process described in Specification 791,453, but the reaction may also be effected by means of redox catalysts. The insoluble polymer may be added as such to the solution of the graft copolymer, or the monomer giving rise to the insoluble polymer may be polymerized in the aforesaid solution with the aid of catalysts such as benzoyl peroxide, a mixture of benzoyl peroxide and dimethyl aniline and azobisisobutyronitrile. The examples describe the preparation of : (1) a carbon tetrachloride solution of polyacrylonitrile and a polystyrene-acrylonitrile graft copolymer; (2) a benzene solution of a polymer mixture as in (1); (3) a carbon tetrachloride solution of polyvinyl chloride and a polystyrene-vinyl chloride graft copolymer; (4) a chloroform solution of polyvinylidene chloride and a polyvinyl acetate-vinylidene chloride graft copolymer; and (6) a carbon tetrachloride solution of polyacrylonitrile and a polyacrylonitrile-styrene graft copolymer.
Patent GB-469953-A (GB)
Title: Improvements in or relating to motion picture cameras and magazines therefor
IPC: G03B19/18
Filed: 1936-02-05
Abstract: 469,953. Kinematograph cameras. KODAK, Ltd. (Eastman Kodak Co.) Feb. 5, 1936, No. 3472. [Class 97 (i)] In a camera containing a film magazine. provided with a slot into which a feed claw passes, and also with a shutter to close the exposure aperture and feed slot, the shutter, or a part moving therewith, meets an inclined part of the claw, as the shutter is closed, at such an angle that it slides smoothly over it and removes the claw from the slot ; the shutter may co-operate with mechanism for latching the door of the magazine chamber to ensure that the magazine cannot be removed from the chamber until the claw has been removed from the slot. As shown, a magazine 20 is held in position on a support 18 in the camera, and against a plate 17 thereof, by springs 33, 34, 35. A feed claw 39, having a cross-pin 42 to limit its penetration through the plate 17, is operated by a crank disc 37, and pressed by a spring 41 ; its upper edge 44 is inclined. A flexible shutter 24, sliding between walls 22, 23 in the magazine, engages the edge 44, as the shutter is lowered to close the exposure apertures 27 and claw slots 28, 29, and removes the claw from the slot 29. The door 48 of the magazine chamber may carry a slotted post 52, Fig. 4, engageable by a flange 51 on a bar 50 slidable by an external button 54 to latch the door. The bar 50 may carry a slotted saddle piece 55 engaging a pin 25 on the shutter 24, so as to close the shutter 24 as the door 48 is unlatched, and vice versa. The magazine may have exposure apertures &c., each furnished with a shutter, at opposite ends, and ejector mechanism 36, Fig. 1, as described in Specification 468,445, may be provided for it. Specifications 469,950 and 469,952 also are referred to.
Patent GB-108647-A (GB)
Title: Sewing Machine.
Inventor: FAIRWEATHER WALLACE
IPC: D05B35/06
Filed: 1917-03-09
Abstract: 108,647. Fairweather, W., (Singer Manufacturing Co.). March 9, 1917. Sewing-machines; extra threads, attaching. - Relates to devices for laying surface threads in front of the needles, and is described as adapted for two surface threads, though the arrangement is suitable for anv number of threads. The thread fingers 27, 32 are secured in sockets 25, 31, of superposed plates 24, 30, journaled on a supporting bar 14<x>, for example, the presser-bar. Each plate carries a pivoted block 35, which engages a guideway 36 provided on a reciprocating member 37 embracing the supporting bar and having overhanging flanges 38<x> which embrace shoulders on a block 40 secured to the bar 14<x>. The member 37 is connected by a link 43 to an arm) 44 of a shaft which is rocked by pitman connexion with a countershaft driven through suitable gearing from the main shaft.
Patent GB-694432-A (GB)
Title: Improvements in or relating to electric storage batteries
IPC: H01M50/367
Filed: 1950-02-10
Abstract: 694,432. Batteries. WOLF SAFETY LAMP CO. (WM. MAURICE), Ltd. Jan. 10, 1951 [Feb. 10, 1950], No. 3488/50. Class 53. An accumulator is provided with a chamber 6 above a partition 5 in which are openings 9 leading to the individual cells. The chamber 6 is filled with electrolyte which enters all the cells simultaneously. Each cell is provided with a gas vent 10 which extends to within a short distance from the cover 11 of the chamber 6. The cover is provided with a filling opening which is normally closed by a stopper having a gas vent fitted with an escape valve. Fig. 6 shows a modification in which the filling chamber 14 is formed on the side wall of the accumulator casing and communicates with the cells through openings 15 near the bottom of the chamber. Gases escape through openings 17 at the top of the chamber.
Patent GB-818846-A (GB)
Title: Turbine and axial flow compressor blade rings and methods of assembly
Inventor: BISHOP BASIL THOMAS GEORGE
IPC: F01D5/22
Filed: 1956-02-03
Abstract: 818,846. Turbine and compressor blade assemblies. NAPIER & SON Ltd., D. Jan. 22, 1957 [Feb. 3, 1956], No. 3510/56. Class 110 (3). In a turbine or axial-flow compressor blade ring assembly in which the blades each comprise an aerofoil portion 10, a stem portion 13 having transverse front and rear walls and at least one web extending between these walls, and a root portion 14, the individual blades are laced together by wire lacing 15 which passes through the webs of the stem portions. The lacing wire is formed in two parts 15A, 15B, as shown in Fig. 2, to give greater flexibility, and the wire may either be in the form of a single ring passing through all the blades of the blade ring or in the form of short wire segments arranged end-to-end in the form of a ring, each wire segment passing through a group of blades. Enlarged or deformed portions are provided in the wire to prevent the wire disengaging from the holes in the stem portions. The wire lacing may pass through ferrules fitted in the blade stem portions so as to prevent wear caused by rubbing of the wire on the stem portions. In Fig. 7 short wires such as 28C, 28D pass obliquely through holes in the stem portion 26A, 26B . . . each stem portion being connected to the stem portions of the blades on either side of it. The object of the invention is to reduce blade vibration and to avoid the use of lacing wire disposed in the working fluid stream.
Patent GB-492957-A (GB)
Title: Improvements in or relating to gun turrets
IPC: F41A27/20
Filed: 1936-02-05
Abstract: 492,957. Gun turrets. BRISTOL AEROPLANE CO., Ltd., and FRISE, L. G. Feb. 5, 1936, No. 3537. [Class 92 (i)] An aircraft gun turret 13 is rotated with respect to the fuselage 10 by a double-acting hydraulic jack 28 carried by the rotary part of the turret and having a ram 30 geared to a gear wheel 24 secured coaxially with the axis of rotation of the turret, the arrangement being such that a constant torque is applied in all rotational positions of the turret. The invention is shown applied to a turret in which the gun is supported by a pillar 17 the lower end of which has a roller 26 engaging the floor of the turret. The cylinder of the hydraulic jack is hinged to an arm 27 extending from a drive member 16 attached to the pillar, and the ram carries a rack pressed into engagement with a fixed pinion 24 by a spring urged roller 31 on the drive member 16. The pinion may be mounted to move with the turret, the cylinder being mounted fast with the fuselage.
Patent GB-1166334-A (GB)
Title: Continuous Casting Method.
Inventor: KHOREV VIKTOR NIKOLAEVICH
IPC: B22D11/10
Filed: 1967-01-24
Abstract: 1,166,334. Continuous casting. URALSKY ZAVOD TYAZHELOGO MASHINOSTROENIA IMENI S. ORDZHONIKIDZE. 24 Jan., 1967, No. 3543/67. Heading B3F. The molten surface 8 of metal in a curved mould is above the level 9 of the centre O of curvature by a height H defined by where R is the radius of curvature, V is the casting speed and K is the coefficient of solidification and equals #/ ##'  where 8 is the rate of cooling in the mould and T is the metal temperature. The mould 1 has copper members 2 and the cast strand 5 passes through a secondary cooling area having a guiding-bar zone 3 and a roller zone 4.
Patent GB-722408-A (GB)
Title: Improvements in or relating to embossing machines
Inventor: BRAINARD GEORGE CURWIN
IPC: B41J3/38
Filed: 1951-02-14
Abstract: 722,408. Typewriters. ADDRESSOGRAPHMULTIGRAPH CORPORATION. Feb. 14, 1951, No. 3571/51. Class 100 (4). Type lever machines; machines for embossing plastic materials; heating arrangements for type heads and platens (Figs. 1, 3, 5 and 7).-An embossing machine 20 comprises a number of type heads 25 mounted for individual movement from retracted positions to operated positions wherein the type head is disposed in a working position that is the same for each type head, a carriage C and cross-slide arrangement for supporting and variantly positioning a plastic plate P for co-operation with a die cavity 76 formed in a type head 25, a heated block or platen 50 for heating the plate P, and a further heated block 60 for heating the type heads 25 when in the retracted position. The plate P is held in position on the block 50, which may be aluminium, by ridges 71 on the plate cooperating with ridges on the block, and by spring members 51. The block 50 is heated by elements 55 under the control of a thermostat 56. The block 60 is similarly heated by heating elements 65 under the control of a thermostat 66. The block 60 is formed with a groove 61 and a plurality of slots 62 forming separate compartments for each type head 25. The letter-spacing and line-spacing arrangements are as described in Specification 700,112. The type heads 25 are formed with dies 76 and angular blades 77 disposed on their leading edges which serve to prevent flow or spattering of the material at the edge of the type character where the material has not been worked. A special type head 25B is provided for forming spaces. The plate P is formed as described in Specification 722,497.
Patent GB-908521-A (GB)
Title: Improvements in or relating to axial-flow blowers and compressors
Inventor: RUNDLE ERIC WILLIAM
IPC: F04D29/66
Filed: 1958-02-04
Abstract: 908,521. Silencers. PLANNAIR Ltd. Jan. 27, 1959 [Feb. 4, 1958], No. 3695/58. Class 7(2) [Also in Group XXVI] In an axial-flow blower or compressor comprising an electric motor housing and a rotor hub surrounded by a cylindrical casing so as to provide an annular space for the through flow of fluid, the casing is provided with perforations or small apertures and has out-turned annular flanges at its extreme ends, soft, uncompacted sound-deadening material being accommodated in the annular space between the flanges and pressed against the outer cylindrical surface of the casing by a thin removable cylindrical sleeve the extreme ends of which fit snugly over and are fastened to the peripheral portions of the flanges without projecting axially beyond the flanges. In the two-stage motor-driven axial-flow blower shown, a preferably stranded sound-deadening material 24 such as glass wool or felt surrounds the casing 10 of the blower and is held in place by a sleeve 26 attached to end flanges 12. A large number of countersunk holes 28 are provided in the casing 10. Sound-deadening material 34 is also provided in a perforated inner housing 36. The blower may be of single-stage type. Specification 751,954 is referred to. According to the Provisional Specification, the sound-deadening material may be silk.